Alert archive / Virginia / Flash Flood Warnings in 2003
Flash Flood Warning 88, NWS Baltimore/Washington
NWS Baltimore/Washington issued this flash flood warning at Aug 5, 2003, 1:00 AM EDT for Nelson County, Virginia. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 5, 2003, 1:00 AM EDT (05:00 UTC)
- Expired
- Aug 5, 2003, 4:00 AM EDT
- In force
- 3 hr
- Issued by
- NWS Baltimore/Washington
- Area
- Counties, with a storm outline in the text
County Nelson County, VA
The radar
The Roanoke radar (KFCX), 149 km from the middle of the area, began a volume at 05:02 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Roanoke, VA (KRNK), launched 00:00Z, 5.0 hours before the alert went out and 85 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 729 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 1228 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 12 m²/s²
- 0-3 km storm-relative helicity
- 42 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
What forecasters said that day
The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Baltimore/Washington wrote its last area forecast discussion before this flash flood warning went out at Aug 4, 9:45 PM EDT, 3 hours 15 minutes earlier.
Area forecast discussion, Aug 4, 9:45 PM EDT, 3 hours 15 minutes before
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</html>Hazardous weather outlook, Aug 4, 11:19 AM EDT, 13 hours 41 minutes before
DCZ001-MDZ002>007-009>011-013-014-016>018-VAZ021-025>031-036>042- 050>057-WVZ048>055-050800- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1119 AM EDT MON AUG 4 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR MARYLAND WEST OF THE CHESAPEAKE BAY AND EAST OF GARRETT COUNTY...THE DISTRICT OF COLUMBIA...NORTHERN VIRGINIA...THE NORTHERN AND CENTRAL SHENANDOAH VALLEY...AND THE EASTERN PANHANDLE OF WEST VIRGINIA. .DAY ONE...TODAY SCATTERED THUNDERSTORMS WILL DEVELOP LATE TODAY AND BECOME MORE NUMEROUS TONIGHT. SEVERE THUNDERSTORMS WILL BE POSSIBLE ALONG AND WEST OF THE BLUE RIDGE. FOR NELSON AND ALBEMARLE COUNTIES...DUE TO RECENT HEAVY RAINS ADDITIONAL RAINFALL IN EXCESS OF 1.7 INCHES IN ONE HOUR COULD CAUSE FLOODING LATE THIS AFTERNOON AND TONIGHT. .DAYS TWO THROUGH SEVEN... SEVERE THUNDERSTORMS WILL BE POSSIBLE ACROSS THE REGION TUESDAY. AT THIS TIME... HAZARDOUS WEATHER IS NOT EXPECTED BEYOND TUESDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED. ABW
In the hours before
Special weather statement, Aug 4, 7:28 PM EDT, 5 hours 32 minutes before
VAZ041-050030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 728 PM EDT MON AUG 4 2003 ...HEAVY RAIN OVER NORTHERN FAUQUIER COUNTY... THUNDERSTORMS WITH HEAVY RAIN HAVE PERSISTED OVER NORTHERN FAUQUIER COUNTY FOR THE LAST 90 MINUTES OR SO. RADAR RAINFALL ESTIMATES INDICATE THAT UP TO 2.5 INCHES OF RAIN HAS FALLEN SINCE 630 PM NEAR RECTORTOWN. PEOPLE IN RURAL SECTIONS OF FAUQUIER COUNTY BETWEEN DELAPLANE AND MIDDLEBURG SHOULD BE ALERT FOR HIGH STANDING WATER ON ROADS AND IN AREAS OF POOR DRAINAGE. REPORT ANY FLOODING TO LAW ENFORCEMENT AND ASK THEM TO RELAY THE MESSAGE TO THE NATIONAL WEATHER SERVICE. RDH
Local storm report, Aug 4, 9:04 PM EDT, 3 hours 56 minutes before
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</html>The office that day
Everything else NWS Baltimore/Washington issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 5, 3:59 PM EDT | Severe Thunderstorm Warning | LWX | Rockingham | 31 min |
| Aug 5, 4:30 PM EDT | Severe Thunderstorm Warning | LWX | Rockingham | 45 min |
| Aug 5, 6:58 PM EDT | Severe Thunderstorm Warning | LWX | Greene, Madison, Orange | 47 min |
| Aug 5, 7:41 PM EDT | Severe Thunderstorm Warning | LWX | Culpeper, Fauquier, Stafford | 64 min |
Nearby
Flash Flood Warnings in Virginia, 2003Every flash flood warning in 2003
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.